Answer
4/3
Work Step by Step
To add or subtract fractions, we must have a common denominator. Because 4/9 and 8/9 already have the same denominator, 9, we can add the numerators together:
$ \frac{8}{9} + \frac{4}{9} = \frac{12}{9}=\frac{4}{3}$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Skills Handbook - Adding and Subtracting Fractions - Exercises - Page 791: 4
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